typedef struct _headers HEADERS;
typedef struct _header HEADER;

struct _headers {
  HEADERS *next;
  HEADERS *tail;
  HEADER *header;
};

struct _header {
  const char *key;
  LIST *includes;
  time_t time;
  HEADERS *headers;
  HEADER *newest;
};

extern HEADER *headers( const char *t, time_t time );
extern void headernewest( HEADER *h );
extern void donehdrs( void );
